Posted by John T on May 20, 2020 at 05:52:20 from (45.16.200.171):
In Reply to: Temporary amp guage posted by super99 on May 19, 2020 at 18:03:24:
Super 99, Its possible to use an accurate volt meter on the battery which can provide an indication if its under charge or not. A full charged 12 Volt lead acid battery at rest and stabilized is around 12.6 volts. If its under a good working charging system, subject to battery size and condition and the charging system capacity, voltage should rise to around 13 (at least RISE above 12.6) even up to 14 volts. If it never causes the battery voltage to rise whatsoever ITS LIKELY NOT WORKING unless the battery is bad.
Many typical old car or tractor or even lawn tractors may have two terminal ammeters with a range of say 10 or 20 or 30 amps. For a lawn tractor Id use a small rated one like 10 or 20 amps max and simply place it in series with the battery to see how many amps are flowing in or out. That would be cheap, simple and easy peasey to wire in place.
I have no idea where I got it or its accuracy or brand but I have an induction ammeter you simply place up against the wire to measure current flow.
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